Event between 13RN124 and star GA0920:00059054 with event index number of 2463471
Geocentric closest approach at 2027/09/21 09:55:37 UTC
J2000 position of star is 00:38:55.6 +02:35:24
Equinox of date position of star is 00:40:03.7 +02:42:40
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 53 degrees from the moon.
Moon is 72% illuminated.
TNO apparent brightness V=23.4
[RECON map]
TNO is 46.4 AU from the Sun
and 45.4 AU from the Earth.
The TNO is moving 25.0
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 369 seconds.
The 1-sigma cross-track error in the shadow position is
5581 km.
The sky-plane scale is
32949.9 km/arcsec.
The TNO has an absolute magnitude Hv=6.7
Diameter=278.0 km assuming a 5% albedo -- 11.1 sec chord
Diameter=113.5 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is SCATEXTD
Star training set for 13RN124, (2027/09/21 09:56UT) Object RA Dec mag sep mel Fomalhaut 22:59:10.4 -29:28:28 1.2 40.30 91 Algenib 00:14:40.0 +15:20:15 2.8 14.10 53 PPM 143688 00:38:56.2 +03:17:14 6.4 0.65 53 PPM 143705 00:39:26.1 +02:54:56 8.5 0.29 53 PPM 143722 00:39:50.0 +02:35:10 9.5 0.20 53 PPM 143746 00:40:55.6 +02:51:56 10.7 0.19 53 13RN124 00:40:21.2 +02:44:31 15.5 53 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
2.4 sigma about the mid-time.
The median site spacing is 27.2 km
RECON observability=1.0 and success probability=6.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 09:53:31 | -32.7 | Dark | Up | 39.5 | 204.0 | Up | 09:38:31 - 10:08:31 | 6656 |
| Victoria | 09:53:39 | -35.6 | Dark | Up | 42.2 | 200.9 | Up | 09:38:39 - 10:08:39 | 6575 |
| Kelowna | 09:53:29 | -33.0 | Dark | Up | 40.0 | 205.4 | Up | 09:38:29 - 10:08:29 | 6566 |
| Peachland | 09:53:30 | -33.2 | Dark | Up | 40.2 | 205.1 | Up | 09:38:30 - 10:08:30 | 6566 |
| Summerland | 09:53:29 | -33.3 | Dark | Up | 40.3 | 205.3 | Up | 09:38:29 - 10:08:29 | 6551 |
| Penticton | 09:53:29 | -33.3 | Dark | Up | 40.3 | 205.4 | Up | 09:38:29 - 10:08:29 | 6543 |
| Oliver | 09:53:29 | -33.6 | Dark | Up | 40.6 | 205.6 | Up | 09:38:29 - 10:08:29 | 6514 |
| Anarchist Mountain Observatory | 09:53:29 | -33.7 | Dark | Up | 40.7 | 205.9 | Up | 09:38:29 - 10:08:29 | 6495 |
| Tonasket | 09:53:29 | -33.9 | Dark | Up | 41.0 | 205.9 | Up | 09:38:29 - 10:08:29 | 6472 |
| Okanogan | 09:53:30 | -34.3 | Dark | Up | 41.4 | 205.8 | Up | 09:38:30 - 10:08:30 | 6449 |
| Brewster | 09:53:30 | -34.6 | Dark | Up | 41.7 | 205.7 | Up | 09:38:30 - 10:08:30 | 6433 |
| Manson/Chelan | 09:53:32 | -34.9 | Dark | Up | 42.0 | 205.3 | Up | 09:38:32 - 10:08:32 | 6427 |
| Sleaford | 09:52:58 | -25.6 | Dark | Up | 33.5 | 220.3 | Up | 09:37:58 - 10:07:58 | 6396 |
| Wenatchee | 09:53:32 | -35.3 | Dark | Up | 42.4 | 205.3 | Up | 09:38:32 - 10:08:32 | 6393 |
| Ellensburg | 09:53:33 | -35.7 | Dark | Up | 42.9 | 205.1 | Up | 09:38:33 - 10:08:33 | 6366 |
| Yakima | 09:53:33 | -36.1 | Dark | Up | 43.3 | 205.3 | Up | 09:38:33 - 10:08:33 | 6333 |
| Toppenish/White Swan | 09:53:32 | -36.2 | Dark | Up | 43.4 | 205.6 | Up | 09:38:32 - 10:08:32 | 6309 |
| Goldendale | 09:53:34 | -36.8 | Dark | Up | 44.0 | 205.3 | Up | 09:38:34 - 10:08:34 | 6277 |
| The Dalles | 09:53:36 | -37.1 | Dark | Up | 44.3 | 204.9 | Up | 09:38:36 - 10:08:36 | 6269 |
| PNWRO | 09:53:29 | -35.8 | Dark | Up | 43.3 | 207.7 | Up | 09:38:29 - 10:08:29 | 6233 |
| Maupin | 09:53:35 | -37.4 | Dark | Up | 44.7 | 205.2 | Up | 09:38:35 - 10:08:35 | 6231 |
| Sisters | 09:53:37 | -38.3 | Dark | Up | 45.6 | 204.9 | Up | 09:38:37 - 10:08:37 | 6173 |
| Bend | 09:53:36 | -38.4 | Dark | Up | 45.8 | 205.4 | Up | 09:38:36 - 10:08:36 | 6144 |
| Oregon Observatory | 09:53:37 | -38.6 | Dark | Up | 46.0 | 205.3 | Up | 09:38:37 - 10:08:37 | 6134 |
| North Lake | 09:53:36 | -38.8 | Dark | Up | 46.4 | 206.3 | Up | 09:38:36 - 10:08:36 | 6062 |
| Chiloquin | 09:53:39 | -39.8 | Dark | Up | 47.3 | 205.3 | Up | 09:38:39 - 10:08:39 | 6035 |
| Klamath Falls | 09:53:39 | -40.0 | Dark | Up | 47.6 | 205.6 | Up | 09:38:39 - 10:08:39 | 6002 |
| Lakeview | 09:53:35 | -39.4 | Dark | Up | 47.1 | 207.6 | Up | 09:38:35 - 10:08:35 | 5952 |
| Cedarville | 09:53:35 | -39.8 | Dark | Up | 47.6 | 208.1 | Up | 09:38:35 - 10:08:35 | 5889 |
| Fall River/Burney | 09:53:39 | -40.8 | Dark | Up | 48.5 | 206.7 | Up | 09:38:39 - 10:08:39 | 5887 |
| Susanville | 09:53:37 | -40.9 | Dark | Up | 48.8 | 208.1 | Up | 09:38:37 - 10:08:37 | 5806 |
| Greenville | 09:53:38 | -41.3 | Dark | Up | 49.1 | 207.8 | Up | 09:38:38 - 10:08:38 | 5792 |
| Gimple | 09:53:38 | -41.2 | Dark | Up | 49.1 | 207.9 | Up | 09:38:38 - 10:08:38 | 5789 |
| Quincy | 09:53:38 | -41.4 | Dark | Up | 49.3 | 207.9 | Up | 09:38:38 - 10:08:38 | 5774 |
| Portola | 09:53:37 | -41.3 | Dark | Up | 49.3 | 208.7 | Up | 09:38:37 - 10:08:37 | 5746 |
| Reno | 09:53:35 | -41.1 | Dark | Up | 49.3 | 209.7 | Up | 09:38:35 - 10:08:35 | 5700 |
| Carson City | 09:53:36 | -41.4 | Dark | Up | 49.6 | 210.0 | Up | 09:38:36 - 10:08:36 | 5667 |
| Gardnerville | 09:53:36 | -41.5 | Dark | Up | 49.7 | 210.2 | Up | 09:38:36 - 10:08:36 | 5644 |
| Yerington | 09:53:34 | -41.2 | Dark | Up | 49.5 | 211.0 | Up | 09:38:34 - 10:08:34 | 5628 |
| Hawthorne | 09:53:32 | -41.3 | Dark | Up | 49.7 | 212.0 | Up | 09:38:32 - 10:08:32 | 5568 |
| Lee Vining | 09:53:35 | -41.9 | Dark | Up | 50.3 | 211.7 | Up | 09:38:35 - 10:08:35 | 5533 |
| Tonopah | 09:53:29 | -40.8 | Dark | Up | 49.4 | 214.2 | Up | 09:38:29 - 10:08:29 | 5477 |
| Bishop | 09:53:33 | -42.0 | Dark | Up | 50.5 | 213.1 | Up | 09:38:33 - 10:08:33 | 5453 |
| Beatty | 09:53:28 | -41.4 | Dark | Up | 50.2 | 215.6 | Up | 09:38:28 - 10:08:28 | 5353 |
| Dunrhomin | 09:52:54 | -32.3 | Dark | Up | 41.7 | 227.5 | Up | 09:37:54 - 10:07:54 | 5302 |
| Indian Springs | 09:53:25 | -40.9 | Dark | Up | 49.9 | 217.3 | Up | 09:38:25 - 10:08:25 | 5286 |
| Henderson | 09:53:24 | -40.9 | Dark | Up | 50.0 | 218.7 | Up | 09:38:24 - 10:08:24 | 5211 |
| Wildwood | 09:53:36 | -44.3 | Dark | Up | 53.3 | 215.1 | Up | 09:38:36 - 10:08:36 | 5155 |
| Laughlin/Bullhead City | 09:53:23 | -41.2 | Dark | Up | 50.5 | 219.9 | Up | 09:38:23 - 10:08:23 | 5114 |
| Patrick | 09:53:20 | -40.6 | Dark | Up | 49.9 | 220.6 | Up | 09:38:20 - 10:08:20 | 5114 |
| Kingman/Dolan Springs | 09:53:21 | -40.8 | Dark | Up | 50.2 | 220.5 | Up | 09:38:21 - 10:08:21 | 5099 |
| Mohave Valley | 09:53:23 | -41.4 | Dark | Up | 50.7 | 220.1 | Up | 09:38:23 - 10:08:23 | 5088 |
| Idyllwild | 09:53:30 | -43.4 | Dark | Up | 52.7 | 218.1 | Up | 09:38:30 - 10:08:30 | 5053 |
| Lake Havasu City | 09:53:22 | -41.4 | Dark | Up | 50.9 | 220.7 | Up | 09:38:22 - 10:08:22 | 5041 |
| Parker | 09:53:23 | -41.6 | Dark | Up | 51.1 | 221.1 | Up | 09:38:23 - 10:08:23 | 5006 |
| Calipatria | 09:53:27 | -43.1 | Dark | Up | 52.6 | 220.3 | Up | 09:38:27 - 10:08:27 | 4952 |
| George/Scottsdale | 09:53:16 | -40.3 | Dark | Up | 50.1 | 224.5 | Up | 09:38:16 - 10:08:16 | 4881 |
| Yuma | 09:53:25 | -42.8 | Dark | Up | 52.4 | 221.8 | Up | 09:38:25 - 10:08:25 | 4878 |
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 13RN124, (2027/09/21 09:56UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 40.30 91 Algenib 00:13:14.2 +15:11:01 2.8 14.10 53 PPM 143688 00:37:30.6 +03:08:06 6.4 0.65 53 PPM 143705 00:38:00.6 +02:45:49 8.5 0.29 53 PPM 143722 00:38:24.5 +02:26:03 9.5 0.20 53 PPM 143746 00:39:30.0 +02:42:49 10.7 0.19 53 13RN124 00:38:55.6 +02:35:24 15.5 53 Positions are for J2000
Event circumstances last updated at 2022/01/28 23:54:29 UT
Marc W. Buie, Southwest Research Institute